How many solutions does 9x^2+ 6x + 1 = 0 have? (a) one real and one nonreal complex solution
(b) two distinct real solutions
(c) one real solution with multiplicity 2
(d) two nonreal complex solutions
(e) one nonreal complex solution with multiplicity 2

Which formula gives the area of a triangle? a=1/2(b+h)

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)